![](/images/graphics-bg.png)
Evaluation of Surface Microhardness and Abrasion Resistance of Two Dental Glass Ionomer Cement Materials after Radiant Heat Treatment
Joint Authors
Dionysopoulos, D.
Tolidis, Kosmas
Sfeikos, Thrasyvoulos
Karanasiou, Christina
Parisi, Xanthippi
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-17
Country of Publication
Egypt
No. of Pages
8
Abstract EN
The aim of this study was to evaluate the effect of a radiant heat treatment using a dental LED unit on the surface microhardness and abrasion resistance after toothbrushing simulation of two conventional GIC materials.
Two conventional GIC materials were studied in this investigation: Ketac Fil Plus Aplicap and IonoStar Molar.
Twenty disk-shaped specimens (n=10) were prepared of each GIC (7 mm × 2 mm) using cylindrical Teflon molds.
Group 1 specimens were left in the mold to set without any treatment, while in Group 2 after placement in the mold the specimens were irradiated for 60 sec at the top surface using a LED light-curing unit.
Toothbrushing simulation was carried out using a commercial electric toothbrush which was fixed in a constructed device that allowed the heads of the brushes to be aligned parallel to the surface of the specimens and to control the pressure, with the following parameters: load of the toothbrush standardized at 250 g, medium hardness toothbrush head, and rotation sense changing every 30 sec.
The toothbrush abrasion test mechanism, based on a 1.25-Hz frequency for 10,000 cycles, was equivalent to 800 days (~2 years) of brushing.
Surface hardness, surface roughness, and surface loss after abrasive procedure were evaluated using Vickers method and Vertical Scanning Interferometry.
Data were statistically analyzed using one-way ANOVA and Tukey’s post hoc test (a=0.05).
The radiant heat treatment increased the surface microhardness and decreased surface roughness and surface loss after abrasive procedures of both the tested GIC materials but to different extent.
Between the tested GIC materials there were significant differences in their tested properties (p<0.05).
American Psychological Association (APA)
Dionysopoulos, D.& Tolidis, Kosmas& Sfeikos, Thrasyvoulos& Karanasiou, Christina& Parisi, Xanthippi. 2017. Evaluation of Surface Microhardness and Abrasion Resistance of Two Dental Glass Ionomer Cement Materials after Radiant Heat Treatment. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1124305
Modern Language Association (MLA)
Dionysopoulos, D.…[et al.]. Evaluation of Surface Microhardness and Abrasion Resistance of Two Dental Glass Ionomer Cement Materials after Radiant Heat Treatment. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1124305
American Medical Association (AMA)
Dionysopoulos, D.& Tolidis, Kosmas& Sfeikos, Thrasyvoulos& Karanasiou, Christina& Parisi, Xanthippi. Evaluation of Surface Microhardness and Abrasion Resistance of Two Dental Glass Ionomer Cement Materials after Radiant Heat Treatment. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1124305
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124305